Dry etching apparatus

The present invention relates to a dry etching apparatus which can be applied regardless of materials. The dry etching apparatus may include: an anode unit; a cathode unit configured to receive a bidirectional voltage source of which the voltage polarity alternates between a positive voltage and a n...

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Bibliographic Details
Main Authors Choi, Sang Jun, Lee, Kyung Jin, Kang, Ji Sung
Format Patent
LanguageEnglish
Published 31.05.2022
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
SEMICONDUCTOR DEVICES
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Summary:The present invention relates to a dry etching apparatus which can be applied regardless of materials. The dry etching apparatus may include: an anode unit; a cathode unit configured to receive a bidirectional voltage source of which the voltage polarity alternates between a positive voltage and a negative voltage with time, and separated from the anode unit; a positioning unit configured to position a work piece at a surface of the cathode unit, facing the anode unit; and a bidirectional voltage source supply unit configured to apply the bidirectional voltage source to the cathode unit.
Bibliography:Application Number: US201716094717